--- old/src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp	2014-02-24 12:41:55.903334536 +0100
+++ new/src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp	2014-02-24 12:41:55.819334538 +0100
@@ -159,6 +159,7 @@
   bool contains_reference_locked(OopOrNarrowOopStar from) const;
 
   void clear();
+  void clear_locked();
 
   // Specifically clear the from_card_cache.
   void clear_fcc();